Meituan distributed ID generator (Leaf), which can't be missed, is an easy-to-use batch
Leaf
Leaf is a distributed ID generation service launched by meituan. Its name is taken from the words of German philosopher and mathematician Leibniz: "there are no two identity leaves in the world." ("there are no two same leaves in the world"), taking a name has such moral meaning, meituan programmer Niu break!
Advantag ...
Posted by Chris_Evans on Wed, 25 May 2022 07:06:18 +0300
Construction of Zookeeper in windows
download
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Download address: https://mirrors.cnnic.cn/apache/zookeeper/
PS: zookeeper package with bin ID from version 3.5.5 or later, otherwise an error will be reported when starting: &q ...
Posted by mouse02 on Wed, 25 May 2022 04:12:15 +0300
JAVA wheel making - zookeeper node operation tool class
ZooKeeper is a distributed, open-source distributed application coordination service. It is an open-source implementation of Chubby of Google and an important component of Hadoop and Hbase. It is a software that provides consistency services for distributed applications. Its functions include configuration maintenance, domain name service, dist ...
Posted by wscreate on Tue, 24 May 2022 06:07:13 +0300
ZooKeeper configuration under Hadoop cluster
Install zookeeper environment
zookeeper installation package: https://pan.baidu.com/s/1fpdBs8kbjPj5rlrwusv1iw
Extraction code: h1wv
jdk environment to be prepared: Reference: https://blog.csdn.net/weixin_44147632/article/details/107796624
Decompression: tar -zxf zookeeper-3.4.5-cdh5 14.2. tar. gz -C /opt/bigdata/hadoop/
Renamed: MV zookeeper- ...
Posted by madmindz on Sun, 22 May 2022 16:24:13 +0300
Alibaba cloud server deployment zookeeper+dubbo
Today, I learned that zookeeper has been deployed on both windows and Alibaba cloud ecs servers. I think it's OK. Let me tell you something to avoid stepping on the pit.
To see how windows is deployed, see
Link: https://blog.csdn.net/Fekerkk/article/details/108004177.
Here's how Alibaba cloud deploys:
First, create a path on the server (the thr ...
Posted by Scropion on Sun, 22 May 2022 16:22:57 +0300
Zookeeper listener principle and election mechanism
Composition of Stat structure:
(1)czxid-Create transaction for node zxid
Each modification ZooKeeper Status will receive a zxid Form of timestamp, that is ZooKeeper affair ID.
affair ID yes ZooKeeper The general order of all modifications in the. Each modification has a unique zxid，If zxid1 less than zxid2，that zxid1 stay zxid2 It happene ...
Posted by Eclectic on Sun, 22 May 2022 07:15:09 +0300
docker builds hadoop cluster (distributed and fully distributed)
Chapter 1 is written in front and must be read
1.1 brief description of Hadoop ecology
Note: hadoop is just a platform for storing data. mapreduce is a computing framework, which requires programmers to write programs to process data. Then hadoop is an ecosystem, that is, it also runs HBase database, sqoop, shark and other tools, so as to make ...
Posted by dvt85 on Fri, 20 May 2022 17:54:54 +0300
Docker builds ActiveMQ cluster based on zookeeper and LevelDB
1. Preparation
① A built zookeeper cluster is required
② Pull activemq image
docker pull webcenter/activemq
③ Explain
hostZookeeper cluster portAMQ cluster bind portAMQ message tcp portManagement console port192.168.16.1062181tcp://0.0.0.0:63631616168161192.168.16.1062182tcp://0.0.0.0:63632616178162192.168.16.1062183tcp://0.0.0.0:636336161 ...
Posted by mattwal on Wed, 18 May 2022 04:08:28 +0300
SpringBoot integrates Dubbo and zookeeper
Springboot integrates Dubbo and Zookeeper
The source address of this article: https://gitee.com/liuhuanhuan963019/zookeeper_dubbo.git
1. Test environment setup
Apache Dubbo |ˈdʌbəʊ| is a high-performance, lightweight open-source Java RPC framework that provides three core capabilities: interface-oriented remote method invocation, intelligent ...
Posted by batterdmooie on Wed, 18 May 2022 01:48:12 +0300
Zookeeper common commands
1, Start / connect / exit / close / status
1. Start Zookeeper SERVER background
./zkServer.sh start
2. Connect client
./zkCli.sh
3. Exit client
quit
4. Close Zookeeper background service
./zkServer.sh stop
5. View the status of Zookeeper background service
./ zkServer.sh status (I don't have a cluster here, so the displa ...
Posted by lbraine on Fri, 13 May 2022 17:03:21 +0300